Many options under isaac examples are missed

During I learn the tutorial, the following situation sometimes happened. I just copy down the code(4.5.6) in the tutorial. And then they missed. It makes me confused.

Hi @2703951170 - Can you confirm that you have followed all the steps correctly from this document and section and having issues when you run the code from section 4.5.6
https://docs.omniverse.nvidia.com/isaacsim/latest/core_api_tutorials/tutorial_core_adding_multiple_robots.html#robot-handover